Continuity mistake: When Indy is fighting on the conveyor belt, he is about to be run over a couple of times, but in the next shot he is further away. (01:31:40)
Continuity mistake: When Indiana, Short Round, and Willie are watching the ceremony at the Temple of Doom, just after Indy says "nobody has seen this for 100 years" you can also see Indy, shirtless, down near the alter on the top left of the screen and the skull is lit up. When Mola Ram walks out, it isn't.
Continuity mistake: At Club Obi Wan, Indy reminds Lao Che that Kao Kan tried to get Nurhachi without payment, and when Kao Kan raises his hand we see the gauze wrapped around his palm with a strip from his thumb area going diagonally down to his wrist, but in the next shot the gauze strip is wrapped diagonally from the opposite direction.
Continuity mistake: After Short Round snaps Indy out of his trance, when the Thuggee continues to lower Willie we see in her closeup that the flowers in her hair and the flower garland around her neck are already shriveled and blackened, but in her next closeup the flowers are back to being vibrant and fresh.
Revealing mistake: During the mine cart scene, after Indy notices that the track cuts out, just as the mine cart flies over the expanse there's a vertical wire at the back of the cart, leading up to the top of the screen, and a horizontal wire at the front of the cart, leading toward the right side of the screen. Additionally, when the mine cart lands on the other track keep your eye on the top edge of the screen as something dips into view, but it's pulled back up immediately, right before the shot cuts away to Mola Ram. The wires and the mysterious object can be seen when viewed on Amazon Prime, but they seem to have been edited out of the DVD (2008 version) I own.
Continuity mistake: During the melee at Club Obi Wan, Lao Che's goons toss Indy onto the dish cart which has a horizontal metal bar between two of its legs over the wheels, but in the closeup as Indy tries to grab the antidote vial, the metal bar has vanished, but it reappears when it crashes into the bandstand.
Factual error: The village Indy floats into, supposedly in north India, is populated with people who speak with Indy in Sinhalese, the national language of Sri Lanka. The film was shot on location in Sri Lanka.
Revealing mistake: During car pursuit, when the Chinese thugs drive into the food stands and two of them fall onto the tables, you can see that at least one of them is a puppet from the way his arm is rigidly sticking out when he has fallen. It should have fallen to his side. (00:11:45)